<template>
    <div class="cmt-container">
        <h3>发表评论</h3>
        <hr>
        <textarea placeholder="请输入要BB的内容（做多吐槽120字）" maxlength="120"></textarea>

        <mt-button type="primary" size="large">发表评论</mt-button>

        <div class="cmt-list">
            <div class="cmt-item" v-for="(item, i) in comments" :key="item.add_time">
                <div class="cmt-title">
                    第{{ i+1 }}楼&nbsp;&nbsp;用户：{{ item.user_name }}&nbsp;&nbsp;发表时间：{{ item.add_time | dateFormat }}
                </div>
                <div class="cmt-body">
                    {{ item.content === 'undefined' ? '此用户很懒，嘛都没说': item.content }}
                </div>
            </div>

        </div>

        <mt-button type="danger" size="large" plain @click="getMore">加载更多</mt-button>
    </div>
</template>
<script>
    import { Toast } from 'mint-ui'
export default {
    data(){
        return{
            pageIndex:1,
            comments:[]
        }
    },
    created(){
        this.getComments()
    },
    methods:{
      getComments(){
          this.$http.get("api/getcomments/" + this.id + "?pageindex=" + this.pageIndex).then(result =>{
              if(result.body.status ===0){
                  // this.comments = result.body.message;
                  // 每当获取新评论数据的时候，不要把老数据清空覆盖，而是应该以老数据，拼接上新数据
                  this.comments = this.comments.concat(result.body.message)
              }else{
                  Toast('获取评论失败！')
              }
          })
      },
        getMore(){ //加载更多
          this.pageIndex++;
          this.getComments()
        }
    },

    props:['id']
}
</script>

<style lang="scss" scoped>
    .cmt-container {
        h3 {
            font-size: 18px;
        }
        textarea {
            font-size: 14px;
            height: 85px;
            margin: 0;
        }

        .cmt-list {
            margin: 5px 0;
            .cmt-item {
                font-size: 13px;
                .cmt-title {
                    line-height: 30px;
                    background-color: #ccc;
                }
                .cmt-body {
                    line-height: 35px;
                    text-indent: 2em;
                }
            }
        }
    }
</style>